First Light C-RED 3 - Data Acquisition Modes

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The user has the possibility to reduce the area of the image analyzed by the AGC of the
camera.
The ROI can be set using the “set agc x,y,w,h” command.
Figure 12:
Descriptive scheme of AGC ROI
The current cropping can be read using the “agc roi” command.
Note: the ROI selection is relative to the current cropping window, e.g. (x,y) set to (0,0) selects the top
left pixel of the current cropping window.
Note: When the AGC is enabled, the vrefadjust feature is automatically disabled. It means that when
you use the AGC, you must build the Bias correction with the vrefadjust feature disabled. Vrefadjust
must be disabled but you can set a fixed custom value for Vref. This value will be kept when the AGC is
enabled, it is only the ‘automatic’ feature which is deactivated.
Data acquisition mode
Detector geometry
The SNAKE-SW TECLESS sensor has a (640 x 512) diode array and 8 buffered analog outputs (see Fig.
14 :).
The pixel clock of the sensor is set to 18.2 MHz, which implies a read-out speed peak about 292 Mpix/s
At 600 fps, the average rate is 196.6 Mpix/s (~=393Mbytes/s).